A lengthy list of Silicon Valley’s top players have signed an open letter slamming Donald Trump’s bigotry and policies, arguing that the bloviating, radioactive orange slime puddle “would be a disaster for innovation.”

The letter specifically calls out Trump’s “divisive candidacy,” “poor judgment and ignorance about how technology works,” and attitudes toward women, immigrants, and people of color. It argues that his approach runs counter to “the open exchange of ideas, free movement of people, and productive engagement with the outside world that is critical to our economy.” There’s not much in the way of specific policy callouts, but the letter does criticize Trump’s giant wall and plans for deportations and profiling.

A sampling:

We believe in an inclusive country that fosters opportunity, creativity and a level playing field. Donald Trump does not. He campaigns on anger, bigotry, fear of new ideas and new people, and a fundamental belief that America is weak and in decline. We have listened to Donald Trump over the past year and we have concluded: Trump would be a disaster for innovation. His vision stands against the open exchange of ideas, free movement of people, and productive engagement with the outside world that is critical to our economy — and that provide the foundation for innovation and growth.

Let’s start with the human talent that drives innovation forward. We believe that America’s diversity is our strength. Great ideas come from all parts of society, and we should champion that broad-based creative potential. We also believe that progressive immigration policies help us attract and retain some of the brightest minds on earth — scientists, entrepreneurs, and creators. In fact, 40% of Fortune 500 companies were founded by immigrants or their children. Donald Trump, meanwhile, traffics in ethnic and racial stereotypes, repeatedly insults women, and is openly hostile to immigration. He has promised a wall, mass deportations, and profiling.